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Microchip Technology AT89C51RD2-SLSIM Microcontroller, Microprocessor, FPGA Modules

IC MCU 8BIT 64KB FLASH 44PLCC

625Microchip Technology89C44-LCC (J-Lead)$458.82RoHS
AT89C51RD2-SLSIM 44-LCC (J-Lead) package illustration

Same model may have multiple batches, images only for reference.

AT89C51RD2-SLSIM
Part Number (MPN)
AT89C51RD2-SLSIM
Series
Detailed Description
IC MCU 8BIT 64KB FLASH 44PLCC
Package
44-LCC (J-Lead)
Key Features
Package / Case: 44-LCC (J-Lead); Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
PDF AT89C51RD2-SLSIM Datasheet
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Technical Specifications

Microchip Technology AT89C51RD2-SLSIM Microcontroller, Microprocessor, FPGA Modules technical specifications.

General

Series
89C
RAM Size
2K x 8
Data Bus Width
8 bit
Maximum Clock Frequency
60 MHz
RoHS
Yes
Package / Case
44-LCC
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Obsolete

Alternate Parts Comparison (AT89C51RD2-SLSIM vs AT89C1051-24PC vs AT89C52-24JC vs AT89C51-24AC)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
Series89C--89C89C
Package / Case44-LCC--44-LCC44-TQFP
Mounting TypeSurface Mount--Surface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)--0°C ~ 70°C0°C ~ 70°C
Supply Voltage2.7V ~ 5.5V--4V ~ 6V4V ~ 6V
Core Processor80C51--80518051
Core Size8-Bit--8-Bit8-Bit
RAM Size2K x 8--256 x 8128 x 8
RoHSYes--YesYes
Lifecycle StatusObsolete--ObsoleteObsolete
ConnectivitySPI, UART/USART--SIO, UART/USARTUART/USART
Number of I/O34--3232
Action

Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

Suggested replacements

More Parts in Microcontrollers

Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.